Cultivator attachment for tractors



memos@- INVENTOR ATTORNEY HOVER Filed Aug.

,Mal 87T, 1927"A cULTIvAToR ATTACHMENT FOR TRAcToR's Patented Mar. 8, 1927.

UNITED 4sTaTEs PATENT OFFICE.

`LORIEIIN HOVER, OF SAGINAW, MICHIGAN, QASSIGNOIR. OF ONE-HALF T ELMER l .HOPKINS, OF SAGINAW, MICHIGAN. A I

CULTIVATOR ATTACHMENT FOR TRACTORS.

Application led August 5, 1924. Serial No. 730,140.

This invention is a cultivator attachment for tractors and the improvement pertains more particularly to a novel construction and combinationof parts whereby 4the ob- 5 jects of my invention are attained.

These objects are to provide a cultivator attachment that can be easily and quickly secured to or removed from a tractor' and which is adapted tobe pushed ahead of the tractor. The pushing force is applied by the tractor at the rear end of its draw-bar so that the tractor, which is designed and built for pulling is now made to push the cultivator, although the tractor itself 1s in eect pulling the load. The result is that the tractor is operated under the conditlons of load to which it is best adapted. Yet the cultivator, traveling in advance of the tractor .can be guided properly along the rows to 20. be cultivated because it is directly in front of the driver.

A further'objectpof my improvement is to provide a cultivator attachment of the class described with means whereby the operator can raise or lower the cultlvator points without leaving his seat.

With these and-certain other objects in view which will appear later in the .s ecifications, my'inventmn consists in the evis described and claimed andthe equivalents thereof. f

In the drawings Fig. 1 is a top plan view of the cultivator attachment, the tractor 'indicated by dotted lines.

' 35 Fig. 2 is a front view of the cultivator parts shown in Fig. 1.

Fig. 3 is a side view showing diagrammatically the preferred method of attaching the cultivator to the tractor.

40 Numeral 1 indicates the usual draw-bar of the tractor, desi ed as is customary, to pull its load. 2 is t e pushing frame, which forms a part of the cultivator attachment. The frame is located beneath the tractor l and is connected at its rear end 2 directly to the rear end of the draw-bar. The frame 2 extends forward underneath the front axle f and close to it and projects in advance of the front end of the tractor, being supported 5 at the front axle 3 bymeans of an apertured I claim and desire cross bar 4, which slidingly receives the end of the pin 5, commonly used to fasten ,the trunnion 6 of the tractor to the axle.

The front ends of the two side members of the push frame 2 preferably carry a horizontalv transversely extendin non-rotatable bar 7.the ends of which proJect beyond the ysides lot the. tractor as shown in Fig. 1. Suitable cultivating tools 8 are mounted on rms79 which are preferably pivoted to the All oi the cultivator tools can be raised simultaneously by the tractor o erator# Various means may be employed or this purpose, but I prefer the arrangement illustrated herein. Pulling the hand lever 10 lifts the pivoted arms 9 by lmeans of the connecting L-lever 11, rock shaft 12 and links 13.

While I have shown and described a specific arrangement of the cultivator tools and means for raising and lowering them it will be understood that any other desired devices or implements can be mounted on the bar 7 without departing from the spirit of my invention as set forth in the claim.

The frame 2 pushes its load, namely, the cultivator, ahead of the tractor, but the pushin strain is all on the draw bar l and 1s a pu ling strain, consequently the tractor is always operating under the conditions for which it is best adapted, that is, pulling a load. This results in satisfactory guiding of the cultivator without liability of si ewise weaving, and produces steadier steering of the tractor, and no pushing strain is brought on the front of the axle.

The cross bar 4 and pin 5 enable the front part of the frame 2 to be easily and quickly .attached and detached. Inl fact the frame can be applied to or removed from the tractor very quickly and easily by simply slipping the apertured bar-1 over the front end of the pin 5 andthen bolting the rear end 2 of frame 2 tothe draw bar 1, as shown in Figs. 1 and 3.

'Having thus described my invention, what to secure by Letters Patent is:

The-,combination with a tractor having 10 5 of said bar beneath the front axle and in ada draw bar and a front axle, of a cultivator draw bar, a cross brace on said frame, a pin frame comprising a pair of side members projecting horizontally from said axle and spaced apart, located close to the draw bar slidingly engagin said brace, and tools 10 and extending lengthwise from the rear end carried by the pro]eeting end of said frame.

In testimony whereof, I affix my signature.

-\ A LOREN HOVER.

Vance of the tractor, the rear end of said l i frame secured direct to the rear end of the 

